Home / 22,203.54-30,640.74-12,131.85

Finding the Fourth Proportional to 22,203.54, 30,640.74 and 12,131.85

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Solution

The fourth proportional to 22,203.54, 30,640.74 and 12,131.85 is: 16,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.54 : 30,640.74 = 12,131.85 : x
  2. Step 2: Convert to fraction form
    22,203.54/30,640.74 = 12,131.85/x
  3. Step 3: Cross multiply
    22,203.54x = 30,640.74 × 12,131.85
  4. Step 4: Simplify right side
    22,203.54x = 371,728,861.57
  5. Step 5: Solve for x
    x = 371,728,861.57/22,203.54
  6. Step 6: Final answer
    x = 16,741.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.